On the mechanism and synthetic applications of the thermal and alkaline degradation of c-18 castor oil
作者:S. Ranganathan、Raaj Kumar、V. Maniktala
DOI:10.1016/s0040-4020(01)99322-6
日期:1984.1
c-8 via unique sequence involving a primary reaction which is associated with three different types of redox systems as well as with uncoupled oxidation, the overall change amounting to a milieu of hydride transfer, π -migration, retro-Michael, retro-aldol, Meerwein-Pondorff-Verley as well as Cannizzaro type of reactions. These findings which constitute the core of the present work, are of significance
由π蓖麻油片段的C-18骨架,热至C-11 + C-7 2 S +π 2 S +Ò 2s过程,并通过独特的顺序将热碱转化为c-10 + c-8,该过程涉及与三种不同类型的氧化还原系统以及未偶联的氧化有关的主要反应,总体变化相当于氢化物转移的环境π -迁移,迈克·怀特(Michael),怀特·阿尔多(Retro-aldol),Meerwein-Pondorff-Verley以及Cannizzaro型反应。这些发现构成了本研究的核心,不仅对于了解蓖麻油的两个最重要的反应具有重要意义,而且在利用这些知识来引导和优化所需产品方面也具有重要意义。此外,它们为机械有机化学增加了一个独特的方面。蓖麻油C-18→C-11 + C-7变化的协调性质的令人信服的证据是,将12-羟基十八烷基9-壬酸甲酯干净地转化为新型有用的烯丙基酯,十一碳烯酸9,10-讨人喜欢。对不同的α-取代的γδ-不饱和醇进行的模型研究表明,π2个S